netdev - Re: [PATCH net-next 1/1] e1000e: Enable Link Partner Advertised Support

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Message-ID: <Y7W66ZstaAb9kIDe@lunn.ch>
Date:   Wed, 4 Jan 2023 18:44:09 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Jamie Gloudon <jamie.gloudon@....fr>
Cc:     Tony Nguyen <anthony.l.nguyen@...el.com>, davem@...emloft.net,
        kuba@...nel.org, pabeni@...hat.com, edumazet@...gle.com,
        netdev@...r.kernel.org, sasha.neftin@...el.com,
        Naama Meir <naamax.meir@...ux.intel.com>
Subject: Re: [PATCH net-next 1/1] e1000e: Enable Link Partner Advertised
 Support

> > I don't know this driver at all. What i don't see anywhere here is
> > using the results of the pause auto-neg. Is there some code somewhere
> > that looks at the local and link peer advertising values and runs a
> > resolve algorithm to determine what pause should be used, and program
> > it into the MAC?
> > 
> >     Andrew
> This is a old patch i had laying around, If i remember correctly, phy->autoneg_advertised plugs in "Link partner
> advertised pause frame use link" line in ethtool everytime the nic renegotiate.

Hi Jamie

Could you point me at the code which interprets the results of the
auto neg and configures the MAC for the correct pause.

Thanks
	Andrew